![](http://www.alamy.com/thumbs/6/82C2B030-FEC1-486C-A51B-8DD081444C84/2REBK1W.jpg)
Volcanologist measuring lava flow from Kilauea, the worlds most active volcano
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Photo credit: © G. Brad Lewis / Alamy / Afripics
License: Licensed
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Keywords: big, flows, hawaii, island, island-scenics/attractions, kilauea, lava, national, parks, scientists, travel, usa, volcano, volcanoes, volcanologists, work